/* ancho */
::-webkit-scrollbar {
  width: 10px;
}

/* fondo */
::-webkit-scrollbar-track {
  background: #f5f5f5;
  border-radius: 4px;
}
 
/* barra deslizadora */
::-webkit-scrollbar-thumb {
  background: #c0c0c0;
  border-radius: 4px;
  transition: background 0.3s ease;
}

/* pasar el mouse */
::-webkit-scrollbar-thumb:hover {
  background: #888888;
}

/* Para Firefox */
* {
  scrollbar-width: thin;
  scrollbar-color: #c0c0c0 #f5f5f5;
}